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Extensions of Streaming Rays Method for Streaming Dominant Neutron Transport Problems

Hong, Ser-Gi  
  • 초록

    The streaming rays(SR) method is improved and extended to multigroup, anisotropic scattering, and three-dimensional angular space(x-y-z(infinite))problems. This method is applied to the shielding problems in which the ray effect occurs seriously. For verification, the results of MORSE-CG code are used as reference solution and the results of TWODANT code are compared. The results show that solutions of the SR method are much better than those of the TWODANT code and are in good agreement with those of the MORSE-CG code. Also, to reduce computing time, two acceleration algorithms are implemented in the SR method : the standard coarse-mesh rebalance and a new angular two-grid acceleration.


  • 참고문헌 (11)

    1. Ray Effect Mitigation Methods for Two-Dimensional Neutron Transport Theory , W.F. Miller, Jr.;Wm. H. Reed , Nucl. Sci. Eng. / v.62,pp.391-411,
    2. Ray-Effect Mitigation in Discrete Ordinate-Like Angular Finite Element Approximations in Neutron Transport , L.L. Briggs;W.F. Miller, Jr.;E.E. Lewis , Nucl. Sci. Eng. / v.57,pp.205-217,
    3. Unconditionally Stable Diffusion-Synthetic Acceleration Methods for the Slab Geometry Discrete Ordinates Equations , E.W. Larsen , Nucl. Sci. Eng. / v.82,pp.47-63,
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    6. The MORSE Monte Carlo Radiation Transport Code System , M.B. Emmett , ORNL-4972, Oak Ridge National Laboratory / v.,pp.,
    7. Application of the Method of Streaming Rays to Particle Transport in Complex Geometries , W.L. Filippone;S. Woolf , Proc. Int. Topl. Mtg. Advances in Mathematical Methods for the solution of Nuclear Engineering Problems / v.1,pp.67,
    8. A Review of Characteristic Methods Used to Solve the Linear Transport Equation , R.E. Alcouffe;E.W. Larsen , Proc. Int. Topl. Advlances in Mathematical Methods for the Solution of Nuclear Engineering Problems / v.,pp.,
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    10. An Investigation of the Method of Streaming Rays for Radiation Transport Probems , S.G. Hong , MS Thesis, Department of Nuclear Engineering, KAIST / v.,pp.,
    11. User's Guide for TWODANT : A Code Package for Two-Dimensional, Diffusion-Accelerated, Neutral-Particle Transport , R.E. Alcouffe(et al) , LA-10049-M, LANL / v.,pp.,

 저자의 다른 논문

  • Hong, Ser-Gi (2)

    1. 1995 "해석함수전개 노달방법의 수학적 수반해" Journal of the Korean Nuclear Society = 원자력학회지 27 (3): 374~384    
    2. 1995 "해석함수전개 노달방법에 기초한 3차원 노달확산 코드" Journal of the Korean Nuclear Society = 원자력학회지 27 (6): 870~876    

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